DiscussionHW6

# DiscussionHW6 - CUNSERVATIDN or MOMENTUM esp/i . H . M h IN...

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Unformatted text preview: CUNSERVATIDN or MOMENTUM esp/i . H . M h IN on DIMENSION m” " ﬁ—32—» H345 1. Two gliders are on a frictionless, level air track. lnitiat directign of motion Initially, glider A moves to the right and —h- glider B is at rest. After the collision. glider A has reversed direction and moves to the left. System c consists of both gliders a and B. A The mass of glider A is one-fourth the mass of ’ glide,- B_ tagL = Jymﬁ Track is frictionless a. Draw an arrow for each glitter and for system C to represent the direction of the change in momentum in this collision. Explain how you determined your answer. , gs, satiric/M It} midfth ‘1 .—-J "‘1 510.5%”th Is the magnitude of the change in momentum vector for glider a greater than. teas than, or @ﬂ‘tthe magnitude of the change in mornenyn vector for glider B? Explain. If a aji Wfﬁﬂw {if mg? Mil-F m” V”? fl??? new start M £5} lid will“ 52m “Willi-'- / Hit-ital t3 Jye’ x‘rtxitrm’rttrxrt. h. Draw an arrow for each glider to represent the Direction of change in velocity direction of the change in velocity from before to after the collision. Explain hov.r you determined your answer. ﬂit):- Fégd I”) denial Mt” this? ant-r {dither}??? :13 9F 04¢ ,4 rim/f3 is the magnitude of the change in velocity vector for glider Aigreater @3133: than, or equal to the magnitude of the change in velocity vector for glider E? Ftp—Iain. gig 3?ch ll) __, l .gﬁesi l”) am Wat'an t “fade t l m e. Consider the following incorrect statement: "Glider B will move to the right: after" trite ootn'r'aion. but: it. would move footer if glider A were to come to a stop. giving glider I5 all i125 momeneum." Describe what is ll'ICfIl'i'EC'l about this statement and explain how you can tell. garage, {9 l” Mmmrfr xi , M a seam; / wall 133 Arts rlaat‘ttyﬁp tail-Lia) Tutorials in Introductory Physics @Prentice Hall. Inc. lecDerrnott. Shaffer. di'. P.E.G.. U. Wash. . First Edition, 21502 Meeh HWa—SE Conservation of momentum in one dimension a. A ﬁrecracker is at rest on a frictionless horizontal table. Firmrﬂﬂkﬁr The ﬁrecracker explodes into two pieces of unequal mass that move in opposite directions on the table. Hem“: i. Is the net force on the left piece always zero? - ﬂ) «ll L . mPlﬂER-‘r‘l J. Heels aft? en fill) Fidel: ﬂit n! dfﬂfé’ﬁ i”) ii. is the net force on the system consisting of both pieces always zero?I Explain. la . this a stain! melee my (in; alas-d s, - I; N) is J71" 74“ iii. Is the momentum of the left piece conserved? Explain. as. I') ' ._ or! six Beehive a 7‘11? if yes? e meme» .8 at sea - -.- JV iv. ls the momentum of the system consisting of both pieces conserved? Explain. ,.'| h. a Heel} slides down a frictionless incline. The incline is ﬁxed in place on a table. Incline at rest / i. Is the net force on the block always zero? Explain. till". ij '- sI/i? {fmﬁnhiﬂfﬁicﬁ afﬁrin ii. Is the net Mufﬁn thglraiine alwayszperp? Explain. as rt sine; iii. Is the net force on the block—incline system always zero? (Hint: Draw free-body diagrams for the blockjneline, and system consisting of both objects.) Explain. Elli), team lit??? iﬁ RM’TL g??? nice Thin singgduxs iv. Is the momentum of the block conserved? Explain_ ills. lasts 0 “l v. I) the momentum of the incline conserved? Explain. rI .: F is, i....~..l. “J vi. is the momentum of the block—incline system conserved? Explain. lid)”. Enema :l; 9 - , re enhance [DPrentice Hall. Inc. First Edition. 2002 Ihion‘nis in introductory Physics MeDermoLt, Shaffer, i5: PEI} ., Li. Wash. ...
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## This note was uploaded on 08/28/2011 for the course PHYS 121 taught by Professor Angerson during the Spring '07 term at UMBC.

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DiscussionHW6 - CUNSERVATIDN or MOMENTUM esp/i . H . M h IN...

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